CARLO GAVAZZI VMU-C EM, Instruction Manual

Page: 98 / 126

VMU-C
VMU-C Instruction manual 98

Daily : it displays the daily trend of the variable for the selected day. To
choose the day use the special calender which can be accessed through the
button next to the date field.

Monthly : it displays the daily average of the value monitored by the analogue
input, for every day of the selected month. To choose the month and year use
the special selection menus next to the field.

Annual : it displays the trend of the average (monthly) value monitored by the
analogue input, for each month of the selected year. To choose the year use
the special selection menu next to the field.
After selecting the display type press the “Refresh Chart” button.
On the right there is the menu allowing to select the analogue input. The list shall
include all enabled analogue inputs.
Note: all keys and selections outside the dark grey area do not need the
“Refresh chart” function. After a few moments the chart will refresh
automatically.
D.
“Section B”
displays in graphical form the trend of the selected variable, (in the
bottom section of the page).
On the ordinate axis (Y) the chart shows the scaled value for the monitored value
(with auto-range function).
Two display types are available: “Line” track or “Area” track.
Note: in daily charts the sampling frequency depends on the storage interval set on
VMU-C EM; it can be: 5,10,15,30,60 minutes.